3 literature references for Opuntia phaeacantha var. flavispina L.D. Benson:

Author:
Year: 2000
Title:
Source: database, The PLANTS Database
Author:
Year: 1996
Title:
Source: database, The PLANTS Database
Author: U. S. Fish and Wildlife Service
Year: 1985
Title: Endangered and Threatened Wildlife and Plants; Review of Plant Taxa for Listing as Endangered or Threatened Species
Source: Federal Register, vol. 50, no. 188